Electrode holder



Nov. 30, 1948. H. BEAUREGARD ELEcTnonE nownn Filed Oct. 8, 1945 INVENTOR. 1%6706 56/7086 6480 Patented Nov. 30, 1948 UNITED STATES PATENT OFFICE ELECTRODE HOLDER Hector Beauregard, Utica, Mich.

Application October 8, 1945, Serial No. 621,031

1 Claim. 1

This invention relates to electrode holders the object being to provide a new and improved device for holding an electrode including an insulating cover for the instrument preventing contact of the hands of the user with one side of the circuit and includes a pair of pivoted members including a block having grooves formed therein at various angles in which the electrode may be positioned and held therein by the other jaw.

These and other features and objects of the invention are hereinafter more fully described and claimed and the preferred form of the device embodying my invention is shown in the accompanying drawing in which:

Fig. l is a perspective view showing my improved electrode holder.

Fig. 2 is a section taken on line 22 of Fig. 1.

Fig. 3 is a perspective view of the grooved block whereby the electrode may be held at various angles to the longitudinal center line of the block.

The invention seeks to provide a new and improved form of electrode holder, a stationary arm and a piston arm and one of the jaws being connected to one side of an electric circuit while the Work piece being operated on is secured to the other side of the circuit. The stationary jaw I is of tubular form as indicated in Fig. 2 and is introduced into a tube 2 of insulating material to prevent the hands of the user coming in contact with the tubular portion 3.

The said tubular portion 3 has a slot 3a and a pair of lugs 4 providing a pivotal support for the handle 5 having the jaw 6 which is in opposed relation to a block I connected in a circuit by the Wire 8a. The upper surface of the block 1 provides a jaw in opposed relation with the jaw 6 of the pivoted handle portion 5 which preferably has a smooth plane surface 8 while the opposed surface of the block is formed with a series of grooves 9, w, H, the grooves I and H being at a right angle one to another. The terminal block I has the threaded apertures 12 to receive the screw 13 to hold the jaw in position on the stationary jaw I, as will be understood from Fig. 2

The handle with which the jaw 6 is integrally formed is pivotally supported on the pin 14 extending through the handle portion 5. The insulating casing 2 is held from longitudinal movement by the screw 15 having a head in a washer like element I 6 provided with the tubular portion I I carried by the insulating casing 2 and the other end on a similar washer like element l9 in which a projecting element on the handle is positioned and thus serves to prevent displacement of the end of the spring [8 engaging the washer IS. The handle element 5 is of metal and is preferably provided with an insulating cover 2| as shown in Fig. I and serves to prevent contact of the hands of the user with the handle while the tube 2 performs a like function in preventing the hands of the user contacting a metallic portion of the electrode holder when in use. The portion 8 of the electric circuit is maintained in electrical contact with the block by the screw 23a shown clearly in Fig. 2.

The electrode is positioned in any one of the grooves provided in the upper surface of the block I which forms a stationary jaw in opposition to the pivoted jaw 6 and the spring member I8 tends to hold the jaw in the position shown in Figs. 1 or 2 and thus securely holds the electrode in the desired position in one or the other of the grooves 9, ID or H depending upon the angle at which the electrode is to be held in a welding operation. The electrode is preferably provided with similar grooves on each side of its four surfaces and the circuit wire 8 extends through the handle and is directly connected with the block I at the forward end of the tube.

The handle portion is preferably provided with a series of apertures 23 beyond the end of the tubular member 3 to permit circulation of air through the hollow portion of the handle element 2 to maintain the handle portion cool during use of the device.

In use of the device the electrode is positioned in any one of the grooved portions 9, Ill or H depending upon the desired angular position of the electrode relative to the longitudinal axis of the holder and it is securely held in position by the spring I 8. The spring is preferably encased in a flexible rubber tube 24 as indicated by dotted lines in Fig. 2.

It is believed evident from the foregoing description that my improved electrode holder is of comparatively simple construction and that the hands of the user are insulated from the metallic parts and thus avoids all danger of injury to the hands of the user.

Having thus briefly described my invention, its utility and mode of operation, what I claim and desire to secure by Letters Patent of the United States is:

An electrode holder comprising a pair of pivoted members, one of said members being of tubular form and having a slot opening through one end thereof, an insulating casing enclosing the tube, said tube at its forward end having a portion of greater thickness than the thickness of the tube,

3 a copper block secured in surface contact with said thicker portion of the tube and having a surface thereof extending outwardly of the slot, the said surface having a series of grooves at various angles to the longitudinal axis of the block, one of the pivoted members having a terminal portion substantially parallel with the surface of the block when in contact therewith, spring means tending to hold the jaw of the pivoted member in contact with the grooved surface of said block, a wire connected with the grooved block and eX- tending through the end of the tubular member and connected with a source of current supply, it being understood that the work piece is connected with the opposing wire of an electric circuit whereby through contact of the electrode with the work piece the electrode is heated to welding condition at the end thereof in contact with the work piece substantially as described.

HECTOR BEAUREGARD.

REFERENCES CITED The following references are of record in the file of this patent:

UNITED STATES PATENTS Number Name Date 1,526,559 Oeclisle Feb. 17, 1925 1,677,306 Stanclifi July 17, 1928 1,851,039 Fausek et a1 Mar. 29, 1932 2,174,809 Varner Oct. 3, 1939 2,179,440 Wagner Nov. 7, 1989 1 2,213,306 Del Bene Sept. 3, 1940 2,261,373 Hoenie et a1. Nov. 4, 1941 2,373,232 Donnelly Apr. 10, 1945 2,384,999 Heinrich Sept. 18, 1945 2,403,086 Kenworthy July 2, 1946 2,411,980 Ringwald Dec. 3, 1946 

